vancouverrobotics : Messages : 3468-3497 of 4154

I had preheated the bottom electrode to bright orange and rolled it in
some salt, which provides the ions


On 01/14/11 06:54, Bob Cook wrote:
> Nice project! The diagram you linked to indicates there is some sort of "wick"
in the nozzle of the torch, but from the video I couldn't quite see what you
were using. Too bad the sound is so distorted at any significant distance, it
would be an awesome way to play heavy metal!
>
>
> On 2011-01-12, at 10:19 PM, dan williams wrote:
>
>
>> I present this to those technically interested
>>
>> its a "flame speaker"
>>
>> http://www.youtube.com/watch?v=zQ7tF68RKr8
>> wired almost as per http://www.duntemann.com/flamespeaker.jpg
>> of  http://www.duntemann.com/september2006.htm
>>
>> differences are that its 600VDC source (480V half rectified) modulated
>> with the highest ratio "transformer" I could find (an automotive
>> sparkplug coil, 70:1)
>>
>> the amp I had didn't like driving the coil, (which is a flyback coil,
>> gapped core, which is wrong for this)
>>
>>    dan
>>
>> --
>> Dan Williams, Owner
>> http://eds.dyndns.org/
>> Electronic Device Services
>> (604) 886 5934
>> 2022 Lower rd
>> Roberts Creek BC Canada
>> V0N 2W6
>>
>
>

--
Dan Williams, Owner
http://eds.dyndns.org/
Electronic Device Services
(604) 886 5934
2022 Lower rd
Roberts Creek BC Canada
V0N 2W6

Reply | Messages in this Topic (15)

#3469

From: dan williams <dan_williams@...>
Date: Sat Jan 15, 2011 6:25 am
Subject: Re: [VRC] your "dont try this at home" list...

dan_williams@...

thanks!  THATS COOL!
   I wonder if thats limted pwm on the coil oscillator...



On 01/14/11 10:08, Roger Korus wrote:
> Combine that with a singing Tesla coil, and you'd have a two-piece band!
>
> http://www.youtube.com/watch?v=eXsfGVVGb-Y
>
> Roger
>
> On Wed, Jan 12, 2011 at 10:19 PM, dan
williams<dan_williams@...>wrote:
>
>
>>
>> I present this to those technically interested
>>
>> its a "flame speaker"
>>
>> http://www.youtube.com/watch?v=zQ7tF68RKr8
>> wired almost as per http://www.duntemann.com/flamespeaker.jpg
>> of http://www.duntemann.com/september2006.htm
>>
>> differences are that its 600VDC source (480V half rectified) modulated
>> with the highest ratio "transformer" I could find (an automotive
>> sparkplug coil, 70:1)
>>
>> the amp I had didn't like driving the coil, (which is a flyback coil,
>> gapped core, which is wrong for this)
>>
>> dan
>>
>> --
>> Dan Williams, Owner
>> http://eds.dyndns.org/
>> Electronic Device Services
>> (604) 886 5934
>> 2022 Lower rd
>> Roberts Creek BC Canada
>> V0N 2W6
>>
>>
>>
>>
>

--
Dan Williams, Owner
http://eds.dyndns.org/
Electronic Device Services
(604) 886 5934
2022 Lower rd
Roberts Creek BC Canada
V0N 2W6

Reply | Messages in this Topic (15)

#3470

From: Bob Cook <bob@...>
Date: Tue Jan 18, 2011 5:30 am
Subject: Digikey order

bobcook_02

I'm ordering some stuff from Digikey. Since sometimes you only want to order one
or two items, given the cost of shipping it makes sense to combine our orders
together. It works the same was as it usually does: I'll bring your stuff to the
February meeting, you bring me cash for your parts + taxes (I've got the
shipping covered - I'm definitely ordering anyways).

If you are interested to add some stuff let me know by Tuesday 10pm. Send me the
Digikey part number, quantity, and what you think the price is (to make sure I'm
ordering the thing you really want).

Bob

Reply | Messages in this Topic (8)

#3471

From: dan williams <dan_williams@...>
Date: Tue Jan 18, 2011 7:02 am
Subject: ~8051~

dan_williams@...

I was wondering if anyone has a homebrew 8051 programmer, I'm
considering making one, but really dont feel like writing software to
drive it.

   toooo much software to write these days

--
Dan Williams, Owner
http://eds.dyndns.org/
Electronic Device Services
(604) 886 5934
2022 Lower rd
Roberts Creek BC Canada
V0N 2W6

Reply | Messages in this Topic (8)

#3472

From: Roger Korus <rkorus@...>
Date: Tue Jan 18, 2011 7:16 pm
Subject: Mini Sumo Roll Call

thekorus

Hey everyone,

Although most of you may not know me (unless we've happened upon each other at the WCRG one time or another), amongst my robotics interests is Mini Sumo. Are there any other Mini Sumo enthusiasts in Vancouver? I've got a mini I'm getting back into working order, and hoping (planning?) to take it to Robothon in the fall. (Time and money may prevent me from making the WCRG this year now that I don't live 3 hours away from Calgary anymore)

I've got a ring, it would be neat to have some fun matches at the monthly meetings (If you guys don't do that already!)

Cheers,
Roger

#3473

From: Bob Cook <bob@...>
Date: Wed Jan 19, 2011 4:14 am
Subject: Re: [VRC] Mini Sumo Roll Call

bobcook_02

Hi Roger!

There have been quite a few minisumos built and run by various people, including myself, but recently many people have switched to working on Robo-Magellan type robots or walking robots or micromouse or ... (fill in the blank with your favorite thing).

On the other hand, maybe a demo of your robots can revive some interest! :^)

I might even be able to find "The Thin Man" (http://www.bobandeileen.com/gallery2/main.php?g2_itemId=1513) somewhere in my workshop and see it still works.

Bob

On 2011-01-18, at 11:16 AM, Roger Korus wrote:

Hey everyone,

Although most of you may not know me (unless we've happened upon each other at the WCRG one time or another), amongst my robotics interests is Mini Sumo. Are there any other Mini Sumo enthusiasts in Vancouver? I've got a mini I'm getting back into working order, and hoping (planning?) to take it to Robothon in the fall. (Time and money may prevent me from making the WCRG this year now that I don't live 3 hours away from Calgary anymore)

I've got a ring, it would be neat to have some fun matches at the monthly meetings (If you guys don't do that already!)

Cheers,
Roger

#3474

From: Roger Korus <rkorus@...>
Date: Wed Jan 19, 2011 5:24 am
Subject: Re: [VRC] Mini Sumo Roll Call

thekorus

Nice work! Looks similar to my mini, except I used Delrin and isn't quite as thin! I've got to re-build the controller, but hopefully will have it up and running in the next few months to bring in. Here are the build details (Almost 2 years old now!)

I'm thinking of entering robo-magellan eventually with my walking robot when I finally get it up and walking. I don't think it'll be large/fast enough to be competitive on a large course, but it'll be interesting to give it a go...

Cheers,
Roger

On Tue, Jan 18, 2011 at 8:14 PM, Bob Cook <bob@...> wrote:

�

Hi Roger!

There have been quite a few minisumos built and run by various people, including myself, but recently many people have switched to working on Robo-Magellan type robots or walking robots or micromouse or ... (fill in the blank with your favorite thing).

On the other hand, maybe a demo of your robots can revive some interest! �:^)�

I might even be able to find "The Thin Man" (http://www.bobandeileen.com/gallery2/main.php?g2_itemId=1513) somewhere in my workshop and see it still works.

Bob

On 2011-01-18, at 11:16 AM, Roger Korus wrote:

Hey everyone,

Although most of you may not know me (unless we've happened upon each other at the WCRG one time or another), amongst my robotics interests is Mini Sumo. Are there any other Mini Sumo enthusiasts in Vancouver? I've got a mini I'm getting back into working order, and hoping (planning?) to take it to Robothon in the fall. (Time and money may prevent me from making the WCRG this year now that I don't live 3 hours away from Calgary anymore)

I've got a ring, it would be neat to have some fun matches at the monthly meetings (If you guys don't do that already!)

Cheers,
Roger

#3475

From: Tim Webster <tdwebste@...>
Date: Thu Jan 20, 2011 4:06 am
Subject: Re: [VRC] Digikey order

tdwebste

I will be ordering stuff from Digikey. If you would like to combine orders, please let me know before 10:00 am Saturday Morning. I will bring the order to the next February meeting. I will cover shipping.
You bring cash for your parts + taxes.

In your order please include the Digi-Key Part Number, Manufacturer Part Number, "estimated price" and quantity

On Mon, Jan 17, 2011 at 9:30 PM, Bob Cook <bob@...> wrote:

�

I'm ordering some stuff from Digikey. Since sometimes you only want to order one or two items, given the cost of shipping it makes sense to combine our orders together. It works the same was as it usually does: I'll bring your stuff to the February meeting, you bring me cash for your parts + taxes (I've got the shipping covered - I'm definitely ordering anyways).

If you are interested to add some stuff let me know by Tuesday 10pm. Send me the Digikey part number, quantity, and what you think the price is (to make sure I'm ordering the thing you really want).

Bob

Reply | Messages in this Topic (8)

#3476

From: Bob Cook <bob@...>
Date: Tue Feb 1, 2011 5:16 am
Subject: Fwd: maker night

bobcook_02

Maker Faire Vancouver information is now available at their website:
http://vancouver.makerfaire.ca/

In addition there is a special event advertised on the Vancouver Hackspace
mailing list (see below). Seems to be targeted at people who want to learn more
about participating (hint: maybe some of us should attend if we want to organize
something for the main event in June).

Bob

>
> there's going to be a makers meeting Saturday, February 12th from 1-6 at =
> the Vancouver Community Lab (Great Northern Way Campus).
>
> This will be a chance for everybody to bring their ideas, and start =
> getting the ball rolling on what you guys are interested in showing at =
> Maker Faire.  It's open to the public, so feel free to invite friends as =
> well.
>

#3477

From: "Verne" <turnbuckle99@...>
Date: Sat Feb 5, 2011 2:58 am
Subject: Sat Feb 26th,Big Computer Swap Meet

turnbuckle99

There will be a Big Computer Swap Meet and Sale & Pop Culture Collectibles Fair
on Saturday February 26

Great selection of electronics, computer items, printers, monitors, memory, and
much, much more!
Plus rare toys, vintage comics, die-cast, movies, rare 1950's & 60's records,
cds, dvds and all kinds of collectibles!

The new venue is bigger and brighter! Don't miss it!

Saturday February 26
Hours: 11am-4pm
Scottish Cultural Centre
8886 Hudson Street,
South Vancouver
Admission: $3.00
Kids 12 & Under Free, Parking Free

8 ft. tables are $40 each or 2 for $70


If you have any questions please call us at 604-521-6304


Thanks very much,
Verne Siebert
Fun Promotions
www.funpromo.ca

#3478

From: vancouverrobotics@yahoogroups.com
Date: Mon Feb 7, 2011 5:59 pm
Subject: Vancouver Robotics Club Meeting, 2/13/2011, 10:00 am

vancouverrobotics@yahoogroups.com

Reminder from:		vancouverrobotics Yahoo! Group

Title:		Vancouver Robotics Club Meeting

Date:		Sunday February 13, 2011
Time:		10:00 am - 2:00 pm
Repeats:		This event repeats every month on the second Sunday.
Next reminder:		The next reminder for this event will be sent in 4 days.
Location:		BCIT Room SW3-2745
Street:		off Willingdon between Canada Way and Moscrop
City State Zip:		Burnaby, BC

Get reminders on your mobile, Yahoo! Messenger, and email. Edit reminder options

#3479

From: Markus Lampert <markuslampert@...>
Date: Mon Feb 7, 2011 9:09 pm
Subject: Re: [VRC] Vancouver Robotics Club Meeting, 2/13/2011, 10:00 am

markuslampert

Hi guys,

unfortunately I will not be in town this weekend. I fly out today on business
and won't come back until mid next week :(.

I hope you guys have a great meeting!
See you next month
Markus


>
>From: "vancouverrobotics@yahoogroups.com" <vancouverrobotics@yahoogroups.com>
>To: vancouverrobotics@yahoogroups.com
>Sent: Mon, February 7, 2011 9:59:19 AM
>Subject: [VRC] Vancouver Robotics Club Meeting, 2/13/2011, 10:00 am
>
>
>
>
>Reminder from:   vancouverrobotics Yahoo! Group
>
>Title:   Vancouver Robotics Club Meeting
>
>Date:   Sunday February 13, 2011
>Time:   10:00 am                                    - 2:00 pm
>Repeats:   This event repeats every month on the second Sunday.
>Next reminder:   The next reminder for this event will be sent in 4 days.
>Location:   BCIT Room SW3-2745
>Street:   off Willingdon between Canada Way and Moscrop
>City State Zip:   Burnaby, BC
>
>Get reminders on your mobile, Yahoo! Messenger, and email.
>Edit reminder options Copyright � 2011  Yahoo! Inc. All Rights Reserved | Terms

>of Service | Privacy Policy
>
>
>
>

#3480

From: karim devji <karimdevji@...>
Date: Tue Feb 8, 2011 6:35 am
Subject: Robotics

karimdevji@...

Hi I am excited to find out that there is a Robitics club in Vancouver!

I am setting up a Studio in Burnaby and we are looking to set up a Robotics course for kids.

If anyone from the Robotics club is interested please contact me via e-mail.

The Studio is located on Canada Way near Shabolt Arts Centre.

Thanks.

Karim Devji Residential and Commercial Realtor www.theprofessionalsalliance.com (c) 604-727-7086 'The future is as bright as you make it ! smile its free'

Karim Devji Residential and Commercial Realtor www.theprofessionalsalliance.com (c) 604-727-7086 'The future is as bright as you make it ! smile its free'

#3481

From: "glanca" <lancasterg@...>
Date: Thu Feb 10, 2011 2:13 pm
Subject: Local sources for spring wire

glanca

I'd like to make some whisker-type touch sensors and I found a great site about
making springs at
http://home.earthlink.net/~bazillion/intro.html.

Now to find a source of spring wire.  Any suggestions?  I'm thinking of dropping
in to a Tom Lee Music shop but would they be a good source?  At this point I'm
looking for something quite light.

Thanks.

-- Guy

#3482

From: Dave Hylands <dhylands@...>
Date: Thu Feb 10, 2011 3:42 pm
Subject: Re: [VRC] Local sources for spring wire

dhylands_99

Hi Guy,

On Thu, Feb 10, 2011 at 6:13 AM, glanca <lancasterg@...> wrote:
> I'd like to make some whisker-type touch sensors and I found a great site
about making springs at
> http://home.earthlink.net/~bazillion/intro.html.
>
> Now to find a source of spring wire. �Any suggestions? �I'm thinking of
dropping in to a Tom Lee Music shop but would they be a good source? �At this
point I'm looking for something quite light.

I seem to recall that hobby shops carried this as well (I seem to
recall it being called piano wire or something).

Dave Hylands

#3483

From: "Trevor Gibbens" <tgibbens@...>
Date: Thu Feb 10, 2011 4:07 pm
Subject: RE: [VRC] Local sources for spring wire

tgibbens@...

http://www.swcelectronics.com/project_churbie.php

Hi Guy,

Attached please find the latest copy of the Churbie

DIY construction manual. It includes a section on

whisker tactile sensors, as does the Solarbotics

Herbie guide. Here is a link to the Churbie section

of our website.

There are a dozen mousebots nearing completion

at Churchill – our first year with this project.

Best regards,

Trevor Gibbens

From: vancouverrobotics@yahoogroups.com on behalf of glanca
Sent: Thu 10/02/2011 6:13 AM
To: vancouverrobotics@yahoogroups.com
Subject: [VRC] Local sources for spring wire

I'd like to make some whisker-type touch sensors and I found a great site about making springs at
http://home.earthlink.net/~bazillion/intro.html.

Now to find a source of spring wire. Any suggestions? I'm thinking of dropping in to a Tom Lee Music shop but would they be a good source? At this point I'm looking for something quite light.

Thanks.

-- Guy

1 of 1 File(s)

Churbie Construction.doc

#3484

From: vancouverrobotics@yahoogroups.com
Date: Fri Feb 11, 2011 5:59 pm
Subject: Vancouver Robotics Club Meeting, 2/13/2011, 10:00 am

vancouverrobotics@yahoogroups.com

Reminder from:		vancouverrobotics Yahoo! Group

Title:		Vancouver Robotics Club Meeting

Date:		Sunday February 13, 2011
Time:		10:00 am - 2:00 pm
Repeats:		This event repeats every month on the second Sunday.
Location:		BCIT Room SW3-2745
Street:		off Willingdon between Canada Way and Moscrop
City State Zip:		Burnaby, BC

Get reminders on your mobile, Yahoo! Messenger, and email. Edit reminder options

#3485

From: railroads@...
Date: Sun Feb 13, 2011 6:15 am
Subject: RedBee RFID

sswcharlie

Anyone used the RedBee RFID readers etc ?

Thanks

Charlie

#3486

From: "Verne" <turnbuckle99@...>
Date: Fri Feb 18, 2011 9:34 pm
Subject: Sat Feb 26th Big Computer Swap Meet

turnbuckle99

There will be a  Big Computer Swap Meet /Sale & Pop Culture Collectibles Fair 
on Saturday February 26th

Great selection of rare toys, vintage comics, movies, records, cds and all kinds
of collectibes plus computer items, printers,
monitors, memory,electronics and much much more!

The new venue is bigger and brighter !

Don't miss it !

Saturday February 26

Hours: 11am-4pm

Scottish Cultural Centre

8886 Hudson Street, South Vancouver

Admisson : $3.00 Kids 12 & Under FREE

Parking FREE

New Lower Table Price : $40
All Tables are 8 feet
You can book online now.



www.funpromo.ca

#3487

From: Tim Webster <tdwebste@...>
Date: Wed Mar 2, 2011 2:13 am
Subject: rotatory encoder, or rotatory position sensor

tdwebste

I am looking for a rotatory position sensor. I am looking for something I can pickup around town or order from digikey.
Any recommendations.

I have nice 12bit absolute position rotatory position sensors on order, but can't wait 5 weeks.

--
778 317 7769

#3488

From: Derek Anderson <derek@...>
Date: Wed Mar 2, 2011 2:36 am
Subject: Re: rotatory encoder, or rotatory position sensor

rantenki

You could try Lee's electronics on Main, but you would have to call or drop in to see. Active/Future, and�http://www.rpelectronics.com/�are other possibilities, and again, you would have to drop in or call.

I looked at Digikey, but nothing in stock, and pricing was a lot higher than I expected. You may want to check ebay, some sellers have expedited shipping...

On Tue, Mar 1, 2011 at 6:13 PM, Tim Webster <tdwebste@...> wrote:

I am looking for a rotatory position sensor. I am looking for something I can pickup around town or order from digikey.
Any recommendations.

I have nice 12bit absolute position rotatory position sensors on order, but can't wait 5 weeks.

--
778 317 7769

#3489

From: Tim Webster <tdwebste@...>
Date: Wed Mar 2, 2011 6:34 am
Subject: Re: rotatory encoder, or rotatory position sensor

tdwebste

thank you Luke,
exactly what I am looking for

On Tue, Mar 1, 2011 at 10:22 PM, Luke Closs <lukecloss@...> wrote:

Tim,

I'm pretty sure we have a few different kinds of these at VHS. I bet
there are people there right now until later tonight. �Phone ahead to
be sure.

http://www.potentiometers.com/images/hrs100photo.jpg

Luke

On Tue, Mar 1, 2011 at 6:13 PM, Tim Webster <tdwebste@...> wrote:

> I am looking for a rotatory position sensor. I am looking for something I
> can pickup around town or order from digikey.
> Any recommendations.
>
> I have nice 12bit absolute position rotatory position sensors on order, but
> can't wait 5 weeks.
>
>
>
> --
> 778 317 7769
>

--
778 317 7769

#3490

From: Tim Webster <tdwebste@...>
Date: Thu Mar 3, 2011 11:27 pm
Subject: can bus question

tdwebste

I have a "computer|" with a canbus interface. I would like to attach to 2 canbus devices.
I currently have a cable that can be used to contect the computer to one canbus device.

What cabling or hub or switch is required to connect the host canbus computer to other 2 canbus devices?

thx
Tim

--
778 317 7769im

#3491

From: Bob Cook <bob@...>
Date: Fri Mar 4, 2011 12:28 am
Subject: Re: can bus question

bobcook_02

CAN is typically wired as a daisy chain, with 120 ohm termination at each end. I
believe you can buy gear or simply wire it up yourself.

Bob

On 2011-03-03, at 3:27 PM, Tim Webster <tdwebste@...> wrote:

> I have a "computer|" with a canbus interface. I would like to attach to 2
canbus devices.
> I currently have a cable that can be used to contect the computer to one
canbus device.
>
> What cabling or hub or switch is required to connect the host canbus computer
to other 2 canbus devices?
>
> thx
> Tim
>
>
> --
> 778 317 7769im

#3492

From: Tim Webster <tdwebste@...>
Date: Fri Mar 4, 2011 12:46 am
Subject: Re: [VRC] Re: can bus question

tdwebste

Each of the� 3 hosts only has one can interface.

So I need to either a hub or a multi-drop canbus cable. I guess my question is how to build multi-drop canbus cable. Is this just a simple mult-drop cable with all connectors in parallel and with 120 ohm termination at each connector?

Tim

On Thu, Mar 3, 2011 at 7:28 PM, Bob Cook <bob@...> wrote:

�

CAN is typically wired as a daisy chain, with 120 ohm termination at each end. I believe you can buy gear or simply wire it up yourself.

Bob

On 2011-03-03, at 3:27 PM, Tim Webster <tdwebste@...> wrote:

> I have a "computer|" with a canbus interface. I would like to attach to 2 canbus devices.
> I currently have a cable that can be used to contect the computer to one canbus device.
>
> What cabling or hub or switch is required to connect the host canbus computer to other 2 canbus devices?
>
> thx
> Tim
>
>
> --
> 778 317 7769im

--
778 317 7769

#3493

From: Bob Cook <bob@...>
Date: Fri Mar 4, 2011 1:02 am
Subject: Re: [VRC] Re: can bus question

bobcook_02

There should only be terminators at the ends of the bus (which is typically long). If you are going to literally connect the three modules together in a star configuration with short wires you may not need them.

Some logic analyzers can decode CAN, you could use one to check that messages are coming through clearly.

Bob

On 2011-03-03, at 4:46 PM, Tim Webster <tdwebste@...> wrote:

Each of the 3 hosts only has one can interface.

So I need to either a hub or a multi-drop canbus cable. I guess my question is how to build multi-drop canbus cable. Is this just a simple mult-drop cable with all connectors in parallel and with 120 ohm termination at each connector?

Tim

On Thu, Mar 3, 2011 at 7:28 PM, Bob Cook <bob@...> wrote:

CAN is typically wired as a daisy chain, with 120 ohm termination at each end. I believe you can buy gear or simply wire it up yourself.

Bob

On 2011-03-03, at 3:27 PM, Tim Webster <tdwebste@...> wrote:

> I have a "computer|" with a canbus interface. I would like to attach to 2 canbus devices.
> I currently have a cable that can be used to contect the computer to one canbus device.
>
> What cabling or hub or switch is required to connect the host canbus computer to other 2 canbus devices?
>
> thx
> Tim
>
>
> --
> 778 317 7769im

--
778 317 7769

#3494

From: Tim Webster <tdwebste@...>
Date: Fri Mar 4, 2011 1:08 am
Subject: Re: [VRC] Re: can bus question

tdwebste

thx,

I am in toronto for a couple more weeks, I will see if I can get access to a logic analyzer which can decode CAN.

Tim

On Thu, Mar 3, 2011 at 8:02 PM, Bob Cook <bob@...> wrote:

�

There should only be terminators at the ends of the bus (which is typically long). If you are going to literally connect the three modules together in a star configuration with short wires you may not need them.�

Some logic analyzers can decode CAN, you could use one to check that messages are coming through clearly.�

Bob

On 2011-03-03, at 4:46 PM, Tim Webster <tdwebste@...> wrote:

Each of the� 3 hosts only has one can interface.

So I need to either a hub or a multi-drop canbus cable. I guess my question is how to build multi-drop canbus cable. Is this just a simple mult-drop cable with all connectors in parallel and with 120 ohm termination at each connector?

Tim

On Thu, Mar 3, 2011 at 7:28 PM, Bob Cook <bob@...> wrote:

�

CAN is typically wired as a daisy chain, with 120 ohm termination at each end. I believe you can buy gear or simply wire it up yourself.

Bob

On 2011-03-03, at 3:27 PM, Tim Webster <tdwebste@...> wrote:

> I have a "computer|" with a canbus interface. I would like to attach to 2 canbus devices.
> I currently have a cable that can be used to contect the computer to one canbus device.
>
> What cabling or hub or switch is required to connect the host canbus computer to other 2 canbus devices?
>
> thx
> Tim
>
>
> --
> 778 317 7769im

--
778 317 7769

--
778 317 7769

#3495

From: Tim Webster <tdwebste@...>
Date: Fri Mar 4, 2011 1:23 am
Subject: Re: [VRC] Re: can bus question

tdwebste

For future use after I return to vancouver, what is your thoughts on
http://www.usbee.com/index.html
or does hackspace currently have a logic analyzer which can decode CAN?

If I end up getting one. I would probably want to share it with hackspace members. Since I don't have ANY space for a home lab.

Tim

On Thu, Mar 3, 2011 at 8:08 PM, Tim Webster <tdwebste@...> wrote:

thx,

I am in toronto for a couple more weeks, I will see if I can get access to a logic analyzer which can decode CAN.

Tim

On Thu, Mar 3, 2011 at 8:02 PM, Bob Cook <bob@...> wrote:

�

There should only be terminators at the ends of the bus (which is typically long). If you are going to literally connect the three modules together in a star configuration with short wires you may not need them.�

Some logic analyzers can decode CAN, you could use one to check that messages are coming through clearly.�

Bob

On 2011-03-03, at 4:46 PM, Tim Webster <tdwebste@...> wrote:

Each of the� 3 hosts only has one can interface.

So I need to either a hub or a multi-drop canbus cable. I guess my question is how to build multi-drop canbus cable. Is this just a simple mult-drop cable with all connectors in parallel and with 120 ohm termination at each connector?

Tim

On Thu, Mar 3, 2011 at 7:28 PM, Bob Cook <bob@...> wrote:

�

CAN is typically wired as a daisy chain, with 120 ohm termination at each end. I believe you can buy gear or simply wire it up yourself.

Bob

On 2011-03-03, at 3:27 PM, Tim Webster <tdwebste@...> wrote:

> I have a "computer|" with a canbus interface. I would like to attach to 2 canbus devices.
> I currently have a cable that can be used to contect the computer to one canbus device.
>
> What cabling or hub or switch is required to connect the host canbus computer to other 2 canbus devices?
>
> thx
> Tim
>
>
> --
> 778 317 7769im

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778 317 7769

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778 317 7769

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778 317 7769

#3496

From: Bob Cook <bob@...>
Date: Fri Mar 4, 2011 3:05 am
Subject: Re: [VRC] Re: can bus question

bobcook_02

I have one of the Saleae Logic analyzers (http://www.saleae.com/logic/) which is very similar to the USBee SX model. Last time I really studied them, the USBee model was more mature but Windows only. The Saleae model offers a cross platform software package, but offers fewer protocol decoders and the software is pretty basic. On the other hand, it does everything I need in a logic analyzer.

There are plenty of other analyzers out there, many are more sophisticated and usually more expensive. The downside of the USB-based models like Saleae or USBee is the requirement for a fast computer with lots of memory doing nothing but capturing data. Higher end models capture data internally and can run offline from your computer.

Bob

On 2011-03-03, at 5:23 PM, Tim Webster wrote:

For future use after I return to vancouver, what is your thoughts on
http://www.usbee.com/index.html
or does hackspace currently have a logic analyzer which can decode CAN?

If I end up getting one. I would probably want to share it with hackspace members. Since I don't have ANY space for a home lab.

Tim

#3497

From: Tim Webster <tdwebste@...>
Date: Fri Mar 4, 2011 7:56 pm
Subject: linear actuator

tdwebste